Thomas Fischer, M.D.
NPI 1437187101 · Emergency Medicine Physician · Smithtown, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Fischer, M.D. is a Emergency Medicine Physician provider in Smithtown, NY (NPI 1437187101).
Provider details
- NPI number
- 1437187101
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 164238 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,527 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 809 | $103 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 184 | $67 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 97 | $128 |
| Automated Urinalysis Test81003 | 96 | $2 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 74 | $143 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 134 | 127 |
| Doxycycline Hyclate | 110 | 104 |
| Azithromycin | 82 | 79 |
| Azelastine Hcl | 77 | 65 |
| Prednisone | 58 | 56 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 53 | 53 |
| Cephalexin | 50 | 50 |
| Triamcinolone Acetonide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$127 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 4724 Nesconset HwyPort Jefferson Station, NY 11776-2580Phone: (631) 474-5900
Registry dates
- Enumerated
- 2006-06-29
- Last updated
- 2019-12-16
- Certified
- 2019-12-16
Frequently asked questions
- What is Thomas Fischer's NPI number?
- Thomas Fischer's National Provider Identifier (NPI) is 1437187101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Fischer's specialty?
- Thomas Fischer is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Fischer located?
- Thomas Fischer's practice location on file with NPPES is 519 W Jericho Tpke, Smithtown, NY 11787-2619.
- What is Thomas Fischer's phone number?
- The practice phone number listed in the NPPES registry for Thomas Fischer is (631) 360-5900.
- Does Thomas Fischer accept Medicare?
- Thomas Fischer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Fischer's NPI active?
- Yes — Thomas Fischer's NPI (1437187101) is active in the NPPES registry as of the last update on 2019-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.